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Service bulletin 3294B

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10013531
Published by NHTSA2005-04-21
Manufacturer's number3294B
Replaces3294D
NHTSA componentEQUIPMENT:ELECTRICAL

NHTSA's summary

INACCURATE SPEEDOMETER. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Equipment and accessories

Vehicles listed
CHEVROLET C45002006
CHEVROLET C55002006
CHEVROLET KODIAK2003 to 2005
GMC C45002006
GMC C55002006
GMC TOPKICK2003 to 2005

Listing a model year does not mean every vehicle of it is concerned: the document says which.